Agroforestry Systems

, Volume 35, Issue 2, pp 203–220 | Cite as

A cost-benefit analysis of hedgerow intercropping in the Philippine uplands using the SCUAF model

  • R. A. Nelson
  • P. G. Grist
  • K. M. Menz
  • R. A. Cramb
  • E. P. Paningbatan
  • M. A. Mamicpic


Soil erosion in the Philippine uplands is severe. Hedgerow intercropping is widely advocated as an effective means of controlling soil erosion from annual cropping systems in the uplands. However, few farmers adopt hedgerow intercropping even in areas where it has been vigorously promoted. This may be because farmers find hedgerow intercropping to be uneconomic compared to traditional methods of farming. This paper reports a cost-benefit analysis comparing the economic returns from traditional maize farming with those from hedgerow intercropping in an upland community with no past adoption of hedgerows. A simple erosion/productivity model, Soil Changes Under Agroforestry (SCUAF), is used to predict maize yields over 25 years. Economic data were collected through key informant surveys with experienced maize farmers in an upland community. Traditional methods of open-field farming of maize are economically attractive to farmers in the Philippine uplands. In the short term, establishment costs are a major disincentive to the adoption of hedgerow intercropping. In the long term, higher economic returns from hedgerow intercropping compared to open-field farming are realised, but these lie beyond farmers′ limited planning horizons.

Key words

credit economics labour maize soil erosion 


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  1. Ciesolka CA, Coughlan KJ, Rose CW, Escalante MC, Hashim GM and Paningbatan EP (1995) Methodology for a multi-country study of soil erosion management. Soil Technol 8(3): 179–192Google Scholar
  2. Comia RA, Paningbatan EP and Hakansson I (1994) Erosion and crop yield response to soil conditions under alley cropping systems in the Philippines. Soil & Tillage Res 31: 249–261Google Scholar
  3. Cruz WD, Francisco HA and Conway ZT (1988) The on-site and downstream costs of soil erosion in the Magat and Pantabangan watersheds. J Philipp Dev XV(1): 85–111Google Scholar
  4. Ehui SK, Kang BT and Spencer DSC (1990) Economic analysis of soil erosion effects in alley cropping, no-till and bush fallow systems in South Western Nigeria. Agric Syst 34: 349–368Google Scholar
  5. Food and Agriculture Organisation (1979) A Provisional Method for Soil Degradation Assessment. FAO, RomeGoogle Scholar
  6. Garrity DP (1993) Sustainable land-use systems for sloping uplands in Southeast Asia. In: Technologies for Sustainable Agriculture in the Tropics, ASA Special Publication 56, American Society of Agronomy, Crop Science Society of America and Soil Science Society of America, Madison, WIGoogle Scholar
  7. Kang BT and Wilson GF (1987) The development of alley cropping as a promising agroforestry technology. In: Steppler HA and Nair PKR (eds) Agroforestry — A Decade of Development. International Centre for Research in Agroforestry, Nairobi, KenyaGoogle Scholar
  8. McCown RL, Hammer GL, Hargreaves JNG, Holzworth DP and Freebairn DM (1995) APSIM: A novel software system for model development, model testing, and simulation in agricultural systems research. Agric Syst 50: 255–271Google Scholar
  9. Nelson RA (1994) Soil erosion and conservation in the Philippine uplands: a review of the literature, SEARCA-UQ Uplands Research Project, Working Paper No. 3, Los Baños, the PhilippinesGoogle Scholar
  10. Nelson RA, Grist PG, Menz KM, Paningbatan EP and Mamicpic MA (1996a) A cost-benefit analysis of hedgerow intercropping in the Philippine uplands using SCUAF, SEARCA-UQ Uplands Research Project, Working Paper No. 7, Los Baños, the PhilippinesGoogle Scholar
  11. Nelson RA, Cramb RA and Mamicpic MA (1996b) Costs and returns of hedgerow intercropping and open-field maize farming in the Philippine uplands, SEARCA-UQ Uplands Research Project, Working Paper No. 11, Los Baños, the PhilippinesGoogle Scholar
  12. Palm CA (1995) Contribution of agroforestry trees to nutrient requirements of intercropped plants. Agrofor Syst 30: 105–124CrossRefGoogle Scholar
  13. Paningbatan EP (1995) ACIAR 9201 Sustainable Cropping Systems in Tropical Steeplands, Country Report: Philippines, Presented at the Final Review of the Project April 1995, Subic Bay, the PhilippinesGoogle Scholar
  14. Paningbatan EP, Ciesolka CA, Coughlan KJ and Rose CW (1995) Alley cropping for managing soil erosion of hilly lands in the Philippines. Soil Technol 8(3): 193–204Google Scholar
  15. Sajise PE (1980) Alang-alang (Imperata cylindrica L. Beauv.) and upland agriculture, Proceedings of BIOTROP Workshop on Alang-alang, BIOTROP Special Publication No. 5, BIOTROP, Bogor, IndonesiaGoogle Scholar
  16. Samzussaman S (1994) Effectiveness of alternative management practices in different hedgerow-based alley cropping systems, PhD dissertation, University of the Philippines, Los Baños, the PhilippinesGoogle Scholar
  17. Skerman PJ (ed) (1977) Tropical Forage Legumes. FAO, RomeGoogle Scholar
  18. Tolentino VBJ (1991) Agricultural credit policy: some lessons for Vietnam from the Philippines and other developing countries. J Econ Dev 21(1): 15–36Google Scholar
  19. Vermeulen SJ, Woomer P, Campbell BM, Kamukondiwa W, Swift MJ, Frost PGH, Chivaura C, Murwira HK, Mutambanengwe F and Nyathi P (1993) Use of the SCUAF model to simulate natural Miombo woodland and maize monoculture ecosystems in Zimbabwe. Agrofor Syst 22: 259–271CrossRefGoogle Scholar
  20. White TA and Jickling JL (1994) An economic and institutional analysis of soil conservation in Haiti. In: Lutz E, Pagiola S and Reiche C (eds) Economic and Institutional Analyses of Soil Conservation Projects in Central America and the Caribbean, World Bank Environment Paper No. 8. The World Bank, Washington, DCGoogle Scholar
  21. Young A (1989) Agroforestry for Soil Conservation. CAB International, Wallingford, UKGoogle Scholar
  22. Young A and Muraya P (1990) Soil Changes Under Agroforestry. Computer Program with User's Handbook. Version 2. ICRAF, Nairobi, KenyaGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • R. A. Nelson
    • 1
  • P. G. Grist
    • 2
  • K. M. Menz
    • 2
  • R. A. Cramb
    • 1
  • E. P. Paningbatan
    • 3
  • M. A. Mamicpic
    • 4
  1. 1.Department of AgricultureUniversity of QueenslandQueenslandAustralia
  2. 2.Centre for Resource and Environmental StudiesThe Australian National UniversityCanberraAustralia
  3. 3.Department of Soil ScienceUniversity of the PhilippinesLos Bañosthe Philippines
  4. 4.Asian Institute of TechnologyBangkokThailand

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